Gdx2DPixmap::Gdx2DPixmap (files::FileHandle::ptr fhandle, int requestedFormat)
:
pixData(0)
,width(0)
,height(0)
,format(0)
{
files::FileHandle::buffer_ptr buffer;
int readed = fhandle->readBytes(buffer);
assert(readed);
pixData = load((unsigned char*) buffer.get(), 0, readed, requestedFormat);
width = pixData->width;
height = pixData->height;
format = pixData->format;
if (pixData == NULL) {
throw std::runtime_error("couldn't load pixmap");
}
}
BitmapFont::BitmapFontData::BitmapFontData ( files::FileHandle::ptr fontFile, bool flip )
: fontFile ( fontFile ),
flipped ( flip ),
capHeight ( 1 ),
scaleX ( 1 ),
scaleY ( 1 ),
ascent ( 0 ),
descent ( 0 ),
down ( 0 ),
spaceWidth ( 0 ),
xHeight ( 1 ) {
glyphs = new Glyph**[PAGES];
memset ( glyphs, 0, sizeof ( Glyph* ) * PAGES );
std::vector <char> n_buffer;
{
files::FileHandle::buffer_ptr buffer;
int readed = fontFile->readBytes ( buffer );
n_buffer.resize ( readed + 1);
memcpy ( &n_buffer[0], buffer.get(), readed );
n_buffer.back() = 0;
}
char* line_r = NULL;
try {
char* line = strtok_r ( &n_buffer[0], "\n", &line_r );
if ( ( line = strtok_r ( NULL, "\n", &line_r ) ) == NULL ) {
throw std::runtime_error ( "Invalid font file: " + fontFile->toString() );
}
char* common = strtok ( line, " " );
if ( sscanf ( strtok ( NULL, " " ), "lineHeight=%f", &lineHeight ) != 1 ) {
throw std::runtime_error ( "Invalid font file: " + fontFile->toString() );
}
int baseLine = 0;
if ( sscanf ( strtok ( NULL, " " ), "base=%d", &baseLine ) != 1 ) {
throw std::runtime_error ( "Invalid font file: " + fontFile->toString() );
}
if ( ( line = strtok_r ( NULL, "\n", &line_r ) ) == NULL ) {
throw std::runtime_error ( "Invalid font file: " + fontFile->toString() );
}
strtok ( line, " " );
strtok ( NULL, " " );
char file[1024];
if ( sscanf ( strtok ( NULL, " " ), "file=%s", file ) < 0 ) {
throw std::runtime_error ( "Invalid font file: " + fontFile->toString() );
}
//removing the quotes (") from start and end of the string
char unquoted[1024];
strncpy ( unquoted, file + 1, strlen ( file ) - 2 );
unquoted[strlen ( file ) - 2] = 0;
imagePath = unquoted;
descent = 0;
while ( true ) {
line = strtok_r ( NULL, "\n", &line_r );
if ( line == NULL ) {
break;
}
if ( strstr ( line, "kernings " ) != NULL ) break;
if ( strstr ( line, "char " ) == NULL ) continue;
Glyph* glyph = new Glyph();
int ch = 0;
if ( sscanf ( line, "char id=%d x=%d y=%d width=%d height=%d xoffset=%d yoffset=%d xadvance=%d page=%*s chnl=%*s",
&ch, &glyph->srcX, &glyph->srcY, &glyph->width, &glyph->height, &glyph->xoffset, &glyph->yoffset, &glyph->xadvance ) != 8 ) {
delete glyph;
throw std::runtime_error ( "Invalid font file: " + fontFile->toString() );
}
if ( ch <= 0xffff ) {
setGlyph ( ch, glyph );
} else {
delete glyph;
continue;
}
if ( !flip ) {
glyph->yoffset = - ( glyph->height + glyph->yoffset );
}
descent = std::min ( ( float ) ( baseLine + glyph->yoffset ), descent );
}
while ( true ) {
line = strtok_r ( NULL, "\n", &line_r );
if ( line == NULL ) {
break;
}
if ( strstr ( line, "kerning " ) == NULL ) break;
int first = 0, second = 0, amount = 0;
if ( sscanf ( line, "kerning first=%d second=%d amount=%d", &first, &second, &amount ) != 3 ) {
throw std::runtime_error ( "Invalid font file: " + fontFile->toString() );
}
if ( first < 0 || first > 0xffff || second < 0 || second > 0xffff )
continue;
Glyph* glyph = getGlyph ( ( char ) first );
glyph->setKerning ( second, amount );
}
Glyph* spaceGlyph = getGlyph ( ' ' );
if ( spaceGlyph == NULL ) {
spaceGlyph = new Glyph();
Glyph* xadvanceGlyph = getGlyph ( 'l' );
if ( xadvanceGlyph == NULL ) xadvanceGlyph = getFirstGlyph();
spaceGlyph->xadvance = xadvanceGlyph->xadvance;
setGlyph ( ' ', spaceGlyph );
}
spaceWidth = spaceGlyph != NULL ? spaceGlyph->xadvance + spaceGlyph->width : 1;
Glyph* xGlyph = NULL;
for ( int i = 0; i < utils::array_size ( xChars ); i++ ) {
xGlyph = getGlyph ( xChars[i] );
if ( xGlyph != NULL ) break;
}
if ( xGlyph == NULL ) xGlyph = getFirstGlyph();
xHeight = xGlyph->height;
Glyph* capGlyph = NULL;
for ( int i = 0; i < utils::array_size ( capChars ); i++ ) {
capGlyph = getGlyph ( capChars[i] );
if ( capGlyph != NULL ) break;
}
if ( xGlyph == NULL ) xGlyph = getFirstGlyph();
capHeight = capGlyph->height;
ascent = baseLine - capHeight;
down = -lineHeight;
if ( flip ) {
ascent = -ascent;
down = -down;
}
} catch ( std::exception e ) {
gdx_cpp::Gdx::app->log ( "BitmapFont", "Constructor exception: %s", e.what() );
throw std::runtime_error ( "Error loading font file: " + fontFile->name() );
}
}